Locking bung



'Dec. 18, 1934. J. THOMPSON 1,985,116

LOCKING BUNG Filed May 1, 1933 I VENTOR.

ATTORNEY.

Patented Dec. 18, 1934 1 ,985,1

UNITED STATES PATENTOFFICE LOCKING BUNG John Thompson, Chilton, Wis., asslgnor of onehalf to George C. Hume, Chilton, Wis.

Application May 1, 1933, Serial No. 668,839

' 1 Claim. (o1.217-10s This invention relates to locking bungs for barotherwise secured thereto. The disc is not rels, kegs and similar vessels and it comprises clamped tightly against the flange by the ring, the features of construction illustrated in the but is swiveled on the sleeve nut. The disc flares accompanying drawing and hereinafter described. outwardly from the sleeve nut and has flanges In the drawing, 11 at its opposite sides adapted to pass through 5 Fig. 1 is a plan view of the bung, a wrench for the notc es 7, in assembling the parts, and t0 tightening the bung being shown in dotted lines; enter the recess 6 when the disc is turned so that Fig. 2 is a section on the line 22 of Fig. 1, t the flanges are out of line with the notches.

looking in the direction of the arrows; When the parts are in the positions shown in Fig. 3 is a plan view of the member for tight- Figs. 1 and 2 of the drawing, a wrench w, indi- 10 ening and locking the bung; cated in dotted lines, is applied to the head of the Fig. 4 is a section through the same on th h e sleeve nut and by turning the wrench in the clock- 4-4 of Fig. 3; I wise direction, the stud will be forced inwardly Fig. 5 is a side elevation of the bun a d, and the sleeve nut will be forced outwardly, and Fig. 6 is a plan view of the same, as the bung disc rests against the packing ring 15 Referring t t drawing, a indicates a bush I and the flanges on the disc carried by the sleeve ing comprising an externally threaded part 1 nutengagethe outer wall of the recess 6, these adapted t b threaded into the hung hole in a discs will be pressed forcibly in opposite direcbarrel stave b, and a part 2 of smaller diameter tions andihe bung will press the packing ring t part 1 the part 2 being inwardly offset from tightly against the shoulder in the bushing, form- 20 t 1 to provide an annular Shoulder 3 on the ing a seal. To release the parts, the wrench will interior of t bushing The bushing an be applied to the sleeve nut and turned in the outer flange 4 adapted to rest against the outer CWPteI'f'CIOCk'WiSe direction- I side of the barrel stave and the part 2 is external- Rlght'hand threads are so umversany used on 1 threaded to receive locking ring 5 which is bolts and, nuts that the natural impulse of one 25 threaded onto said'part and engages the inner Wishing to tighten a nut bolt is to apply? i of th t as Shown in Fj g 2 Between wrench and turn it in the clock-wise direction. the shoulder 3 and the flanged end of the b h- As it is the unscrewing of the sleeve,in the presing, an annular recess 6 is formed on the inner ent invention, which causes the tightening of the n wall of part 1 and notches or grooves 7 are formed bung, the sleeve and nut are provided with leftat diametrically opposite points in the inner wall, hand threads so that one wishing to tighten the these notches extending from the flanged end of bung may apply the wrench and follow the usual t e us t0 t ul groove. course of turning the wrench in the clock-wise A packing ring 8 of suitable material rests on direction to tighten the bun the shoulder 3. The bung 0 comprises a disc hav- What I claim is;

me a par 9 at ts p p y wh h li s flat against The combination with a bung bushing comthe Packing ring, the central portion 9- of the prising an externally threaded body portion havdisc be di d wa y, as hown, and at the ing a flange at its outer end, an internal shoulder center of the'disc is a stud 9 which project 150- at its inner end, an annular recess in its inner ward the outer end of the bushing and has a leftwall between the flanged end and shoulder and hand screw thread. Thevstud is either integral notches in its inner wall extending from the with the disc or afilxedto it. flanged end to said recess, of a packing ring on A device 01, Figs. 2, 3 and 4, is provided for apsaid shoulder, a bung comprising a disc having its plying pressure to the bung to force it tightly peripheral portion bearing on the packing ring against the packing ring. This device comprises and having a threaded stud fixed to its central a sleeve nut 10 having internal and external portion and projecting outwardly, and means for threads and having an angular head 10 at its forcing the bung against the packing ring, comouter end and a flange 10 at its inner end. A prising a sleeve nut on said stud and a member disc 11 has a central opening of larger diameter having a swiveled connection with the sleeve nut than the sleeve nut and of smaller diameter than and having parts adapted to pass through said its flange and this disc rests upon the flange 10 notches and engage said recess, said stud and nut and is held in this position by a ring 12 threaded having left-hand threads.

onto the exterior of the sleeve nut, as shown, or JOHN THOMPSON. 

